Loom for weaving tufted fabrics.



J. A, CLARK.

110,878,119. v PATENTED PEB. 4, 1908,

LOOM FOR W'EAVING TUFTED FABRICS.

APPLIGATION FILED JUNE 1s. 190e.

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No. 878,119. PATBNTBD 1313.4, 1908.

J. A. CLARK. LOOM FOR WBAVING TUFTED- FABRICS.

APPLICATION FILED JUNE 15. 1906.

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UNTTED STATES .ATEN OFFICE.

JOHN A. CLARK, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON.& KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

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' Specification of Letters Patent.

Patented Feb. 4, 1908.

Application filed June l5. 1906. Serial No. 32].87/1.

To all whom it may concern:

Be it known that l, JOHN A. CLARK, a citi- Zen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, haveinvented certain new and useful Improvements in Looms for leaving Tufted Fabrics, of which the following is a specification.

My invention relates to looms for weaving tufted fabrics, and particularly to that class of looms for weaving tufted fabrics in which the tuft yarns are wound side by side upon beams carried by an endless chain from which said beams are taken, -to insert the quills or the yarn carriers, through which the free ends of the yarn pass, into the shed between the parallel warp threads. The beams are taken from and placed upon the endless chain by means of clamps, and operating devices for holding and releasing the tuft yarn beams at the desired time, all' as fully shown and described in U. S. Letters Patent, No. 490,237.

The object of my invention is to improve upon the construction of certain parts of the loom of the class referred to, and more particularly to provide means to stop the loom in case the clamps fail to hold a tuft yarn beam when taken from the chain and allow the beam to drop.

.My invention consists in certain novel features of construction of my'improvements as will be hereinafter fully described.

l have only shown in the drawings detached portions of a loom of the class referred to, and shown and described in said patent, No. 490,237, with my improvements combined therewith, su'lllcient to enable those skilled in the art to understand. the construction and4 operation thereof.

Referring` to the drawings Figure 1 is a side or end view of portions ofa loom side or frame, and of parts of a loom of the class referred to, and of my improvements applied thereto, looking in the direction of arrow a, Fig. 2. Fig. 2 is a section, on line 2, 2, Fig. 1 looking in the direction of arrow l), same figure, and, Fig. 3 shows some of the parts shown in Fig. 1, detached, and in an opposite position.

In the accompanying drawings, 1. are the loom sides or end frames, 2 are brackets secured to the frames 1, which brackets have bearings 2 at their lower ends for the shaft 3 which has on each end a sprocket wheel 4,

around which passes an endless chain 5,

carrying the bearings 6 for the tuft yarn beam 6, on which are the quills or tuft yarn carriers 7 for the pile yarn 8.

Extending up from the loom frames 1 at the rear thereof, are two upright stands 9, see Fig. 2, each carrying va stud 1.0 on which is pivotally mounted the rear end of an arm 11, see Fig. 1. The arms 11 carry 'at their front ends a transverse shaft 12, on which are pivotally supported the hubs 13 on the upper ends of vertically extending` arms 13, see Fig. 2. The lower ends of the upright arms 13 are pivotally connected with the slide bars 14. A bracket 15 is secured t0 each of the upright arms 13, see Fig..2, and has attached thereto a stand 16, upon which yispivotally supported the clamp 17 for the ends of the tuft yarn beam 6. An arm 17 on each clamp 1.7 is connected by a rod 18 to an arm 1.9, see Fig. 1, having a hub 19fast on the transverse shaft 1,2, see Fig. 2. EX- tending from the hub 19 is a second arm 19, having secured thereto one end of the helically coiled tension spring 19 the other end of said tension spring is secured to the arm 11.

The shaft 12 has arocking motion communicated thereto in the usual manner,

through connectors and mechanism, not' shown, and through the connecting rods 18, the clamps 17 are caused to engage or clutch the ends of the tuft yarn beams 6 at the desired time, in the usual way.

Fast on the end-of the shaft 12 is the hub 20 of an arm 20. The arm 20 is connected through a rod or connector 21, with the upper end of a lever 22, centrally pivoted on the stud 23 fast on the stand 9. The lower end of the lever 22 is connected by a rod or connector 241- with an arm 25 on a hub 25 fast on a shaft 26, mounted in a bearing 27 on a stand 27, secured to the loom frame 1, see Fig. 2. Also fast on the shaft 26 is the hub 23 of an arm 2S. The arm 28 is connected, through a link or connector 29 with a lever l30 having its hub'30" pivotally mounted on a end of a sliding bar 35, see Fig. 2, which is mounted upon and adapted to slide in grooves or ways on a horizontally extending arm 36 on a stand or bracket 37, secured to the loom frame, see Fig. 1. r1`he stand or bracket 37 has bearings 37 thereon, in whichv which has a roll 41, see Fig. 2, on its lower end, which extends in the path of and is adapted to be engaged by a cam surface 42 on a cam 42 fast on a driven shaft 43 mounted in suitable bearings on the loom frame. i On the other end' of the rocking shaft 38 is secured the hub 44 of an upright arm 44. The arm 44 oscillates or rocks with the rock shaft 38, and its upper end is adapted to move under the outer end of the slide bar 35, and in the path of the wire 34.

Mounted in bearings 45 on stands 45 is a rock shaft 46 having fast on its front end the hub 47 of an operating handle 47, see Fig. 1.

I On the shaft 46 is fast the hub 49 of an arm 49, which is connected by a rod 50 with the friction driving pulley, not shown, of the loom. -The shaft 46 is rotated to start and stop the loom by means of the handle 47. Fast on the shaft 46 is a collar 51, which has a notch or shoulder 51 in one edge, see Fig. 1, which is adapted to engage a corresponding notch or shoulder on a hub 52 loosely mounted on the shaft 46 and having an arm 52 carrying a stud 53 on which is loosely pivoted the lower end of an upright rod 54. The upper end of said rod 54 extends loosely through an opening in the horizontal arm 36 on the bracket or stand 37, see Fig. 2. The hub 52 has an extension or arm 52 thereon, to which is connected one end of a helically coiled spring 55. The other end of said spring is attached to a stationary stand 56 on the loom frame, see Fig. 1.

The operation ofP my improvements, from the above description in connection with the drawings, will be readily understood by those skilled in the art.

1n the normal operation of the loom, the

4 clamps 17 engage the ends of a tuft yarn beam, 6 but if for any reason a beam 6 should fail to be disengaged from the chain 5, so as to be carried away from the clamp at either of its ends, or at both ends, or if said beam 6 should fail to be properly engaged by the clamp 17 at either, or both ends, and consequently drop from the clamps, said clamps would be moved farther than the normal position of the ends of the tuft yarn-beams 6, as shown in Fig. 2, through the action of the springs 19 and the connection intermediate said clamps and the arms 19, and the rocking of the shaft 12 will move the lever 20, fast on the end of said shaft, and through the intermediate connections, to wit,-connector 21, lever 22, connector 24, arms 25 and 28, and connector 29,-the arm 30 is raised, allowing the lever 33 to drop down and with it the wire 34, so that said wire will extend in the path of the upper end of the arm 44. The rocking of the shaft 38 through the cam 41 will move the arm 44 to its outward position, and carry lwith it the slide bar 35, and allow the upright rod 54, through the action of the tension spring 55, moving the hub 52 on the arm 52, to move up through the opening in the arm 36, as shown in Fig. 2, and through the engagement of the notch or shoulder 52, with the notch or shoulder 51 on the collar 51 fast on the shaft 46, to rock said shaft, and through the rod or connector 50, to thel driving pulley, unclutch the same and stop the loom.

yIncase for any reason it is desired to operate the loom when there are no tuft yarn beams 6 on the chain, and it is not therefore desired or projection 33, which is adapted to bey engaged by a projection 57 on a latch 57,

pivotally mounted on a pinl 58 on an arm 59 having a hub 59 secured on the stud 31.

lBy means of the arm 59 and the latch 57 the lever 33 will be locked or held in its raised osition, shown in Fig. 3, with the lower en of the wire 34 held out of the path of the rocking arm 44. The arm 29 is at the same time free to be moved up and down without interfering with the other parts.

1t will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what 1 claim as new and desire to secure by Letters Patent isz- 1. 1n a loom of the class described for weaving tufted fabrics, the combination with a tuft yarn beam, and clamps for clamping the beam, of connections from said clamps to lmechanism for stopping the loom, and said mechanism, automatically operated in case of the failure of the clamps to operate.

2. 1n a loom of the class described for weaving tufted fabrics, the combination with the clamps for holding the tuft yarn beams as they are removed from and placed operate in athe proper manner7 and said l lail to operate in the proper manner, and said 10 mechanism. mechanism, and supplemental mechanism 4. In a loom of the class described for for rendering` such mechanism inoperative to Weaving tufted fabrics, the combination with stop the loom. the clamps l'or holding the tui't yarn `beams JOHN A. CLARK` as they are removed trom and placed upon y the endless chain, of connections, interme- Titnessesc A diste said clamps, and mechanism to autol J. C. DEWEY, matically stop the loom in case said clamps M. HAAs. 

